diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/__init__.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/__init__.py
index 5638845c3e6e..1e84a8784d87 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/__init__.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/__init__.py
@@ -366,6 +366,7 @@
     State,
     SamplingType,
     AlwaysLog,
+    HttpCorrelationProtocol,
     PolicyContentFormat,
     VersioningScheme,
     GrantType,
@@ -594,6 +595,7 @@
     'State',
     'SamplingType',
     'AlwaysLog',
+    'HttpCorrelationProtocol',
     'PolicyContentFormat',
     'VersioningScheme',
     'GrantType',
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_client_enums.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_client_enums.py
index 8dd8aae6af1f..b9e25c4dd3dd 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_client_enums.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/api_management_client_enums.py
@@ -82,6 +82,13 @@ class AlwaysLog(str, Enum):
     all_errors = "allErrors"  #: Always log all erroneous request regardless of sampling settings.
 
 
+class HttpCorrelationProtocol(str, Enum):
+
+    none = "None"  #: Do not read and inject correlation headers.
+    legacy = "Legacy"  #: Inject Request-Id and Request-Context headers with request correlation data. See https://github.com/dotnet/corefx/blob/master/src/System.Diagnostics.DiagnosticSource/src/HttpCorrelationProtocol.md.
+    w3_c = "W3C"  #: Inject Trace Context headers. See https://w3c.github.io/trace-context.
+
+
 class PolicyContentFormat(str, Enum):
 
     xml = "xml"  #: The contents are inline and Content type is an XML document.
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/diagnostic_contract.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/diagnostic_contract.py
index 041dd6002e6a..a0222b8ac388 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/diagnostic_contract.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/diagnostic_contract.py
@@ -44,6 +44,11 @@ class DiagnosticContract(Resource):
      Headers coming to Api Management Service. Only applicable to Application
      Insights diagnostics. Default is true.
     :type enable_http_correlation_headers: bool
+    :param http_correlation_protocol: Sets correlation protocol to use for
+     Application Insights diagnostics. Possible values include: 'None',
+     'Legacy', 'W3C'
+    :type http_correlation_protocol: str or
+     ~azure.mgmt.apimanagement.models.HttpCorrelationProtocol
     """
 
     _validation = {
@@ -63,6 +68,7 @@ class DiagnosticContract(Resource):
         'frontend': {'key': 'properties.frontend', 'type': 'PipelineDiagnosticSettings'},
         'backend': {'key': 'properties.backend', 'type': 'PipelineDiagnosticSettings'},
         'enable_http_correlation_headers': {'key': 'properties.enableHttpCorrelationHeaders', 'type': 'bool'},
+        'http_correlation_protocol': {'key': 'properties.httpCorrelationProtocol', 'type': 'str'},
     }
 
     def __init__(self, **kwargs):
@@ -73,3 +79,4 @@ def __init__(self, **kwargs):
         self.frontend = kwargs.get('frontend', None)
         self.backend = kwargs.get('backend', None)
         self.enable_http_correlation_headers = kwargs.get('enable_http_correlation_headers', None)
+        self.http_correlation_protocol = kwargs.get('http_correlation_protocol', None)
diff --git a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/diagnostic_contract_py3.py b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/diagnostic_contract_py3.py
index b76b868476c7..8972ad8fb8af 100644
--- a/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/diagnostic_contract_py3.py
+++ b/sdk/apimanagement/azure-mgmt-apimanagement/azure/mgmt/apimanagement/models/diagnostic_contract_py3.py
@@ -44,6 +44,11 @@ class DiagnosticContract(Resource):
      Headers coming to Api Management Service. Only applicable to Application
      Insights diagnostics. Default is true.
     :type enable_http_correlation_headers: bool
+    :param http_correlation_protocol: Sets correlation protocol to use for
+     Application Insights diagnostics. Possible values include: 'None',
+     'Legacy', 'W3C'
+    :type http_correlation_protocol: str or
+     ~azure.mgmt.apimanagement.models.HttpCorrelationProtocol
     """
 
     _validation = {
@@ -63,9 +68,10 @@ class DiagnosticContract(Resource):
         'frontend': {'key': 'properties.frontend', 'type': 'PipelineDiagnosticSettings'},
         'backend': {'key': 'properties.backend', 'type': 'PipelineDiagnosticSettings'},
         'enable_http_correlation_headers': {'key': 'properties.enableHttpCorrelationHeaders', 'type': 'bool'},
+        'http_correlation_protocol': {'key': 'properties.httpCorrelationProtocol', 'type': 'str'},
     }
 
-    def __init__(self, *, logger_id: str, always_log=None, sampling=None, frontend=None, backend=None, enable_http_correlation_headers: bool=None, **kwargs) -> None:
+    def __init__(self, *, logger_id: str, always_log=None, sampling=None, frontend=None, backend=None, enable_http_correlation_headers: bool=None, http_correlation_protocol=None, **kwargs) -> None:
         super(DiagnosticContract, self).__init__(**kwargs)
         self.always_log = always_log
         self.logger_id = logger_id
@@ -73,3 +79,4 @@ def __init__(self, *, logger_id: str, always_log=None, sampling=None, frontend=N
         self.frontend = frontend
         self.backend = backend
         self.enable_http_correlation_headers = enable_http_correlation_headers
+        self.http_correlation_protocol = http_correlation_protocol